I am 61 yrs old and a diabetic since 2004. I take metformin tablets 1 gm twice one in the morning and one in the evening after meals & glyperimide 2 mg after breakfast. Other medicines are atorvastatin 10 mg, and bp medicine along with tablets containing multivitamins, minerals, antioxidants etc. I have been suffering from erectile dysfunction over the last few years but has worsened over the past few months. Is ed due to diabetes or due to my age?